3LPB

Crystal structure of Jak2 complexed with a potent 2,8-diaryl-quinoxaline inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.176 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Discovery and SAR of potent, orally available 2,8-diaryl-quinoxalines as a new class of JAK2 inhibitors

Pissot-Soldermann, C.Gerspacher, M.Furet, P.Gaul, C.Holzer, P.McCarthy, C.Radimerski, T.Regnier, C.H.Baffert, F.Drueckes, P.Tavares, G.A.Vangrevelinghe, E.Blasco, F.Ottaviani, G.Ossola, F.Scesa, J.Reetz, J.

(2010) Bioorg.Med.Chem.Lett. 20: 2609-2613

  • DOI: 10.1016/j.bmcl.2010.02.056

  • PubMed Abstract: 
  • We have designed and synthesized a novel series of 2,8-diaryl-quinoxalines as Janus kinase 2 inhibitors. Many of the inhibitors show low nanomolar activity against JAK2 and potently suppress proliferation of SET-2 cells in vitro. In addition, compoun ...

    We have designed and synthesized a novel series of 2,8-diaryl-quinoxalines as Janus kinase 2 inhibitors. Many of the inhibitors show low nanomolar activity against JAK2 and potently suppress proliferation of SET-2 cells in vitro. In addition, compounds from this series have favorable rat pharmacokinetic properties suitable for in vivo efficacy evaluation.


    Organizational Affiliation

    Novartis Institutes for Biomedical Research, Novartis Pharma AG, WKL-136.4.96, CH-4002 Basel, Switzerland. carole.pissot@novartis.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tyrosine-protein kinase JAK2
A, B
295Homo sapiensMutation(s): 0 
Gene Names: JAK2
EC: 2.7.10.2
Find proteins for O60674 (Homo sapiens)
Go to Gene View: JAK2
Go to UniProtKB:  O60674
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NVB
Query on NVB

Download SDF File 
Download CCD File 
A, B
N-methyl-4-[3-(3,4,5-trimethoxyphenyl)quinoxalin-5-yl]benzenesulfonamide
C24 H23 N3 O5 S
LYSCAOWDVVWGQK-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PTR
Query on PTR
A, B
L-PEPTIDE LINKINGC9 H12 N O6 PTYR
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
NVBIC50: 42 nM (100) BINDINGDB
NVBIC50: 42 nM BINDINGMOAD
NVBIC50: 42 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.176 
  • Space Group: P 41
Unit Cell:
Length (Å)Angle (°)
a = 112.390α = 90.00
b = 112.390β = 90.00
c = 70.651γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
XSCALEdata scaling
REFMACrefinement
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-04-28
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance